Type-writer line-finder.



A. C. ROEBUCKI TYPE WRITER LINE FINDER.

APPLICATION FILED IAN. 2|. 916.

Patefited Aug. 21, 1917.

taint; AUFN OFMJE.

ALVAH O. ROEBUCK,' OF PARK RIDGE, ILLINOIS, ASSIGNOR 'lO WOODSTOCKTYIEE- WRITER COMPANY, 015 WOODSTOCK, ILLINOIS, A CORPORATION OF ILLINOIS.

. Specification of Letters Patent.

TYPE-WRITER LINE-FINDER.

Application fiiedJaiiuary 21, 191s. Serial No. 73,286.

To all whom it may concern:

Be it known that LALv'AI-i C. Roneuox, a citizen of the United States, residing at Park Ridge, in the county of Cook and State. of Illinois, have invented certain new and useful Improvements in Typewriter Line-Finders of which the following is a specification. j I a h This invention relates to typewriters and more particularly to means for properly alining a sheet to be printed and for holding a sheetwproperly against the platen adj acent the printing point. The principal object of the invention is to provide a new and improved construction, combination and arrangement of parts for accomplishing these results. j

In the drawing, Figure 1 is a front elevation of a portion of a typewriter embodying the lnvention; Flg. 2 1s a side elevation show ing the. relation of the line finders proper to the platen, and Figs. 3, 4, 5 and 6 illustrate modified forms of the upper free extremity of theline finder proper.

Itis diflicult to insert a sheet in a typewriter so that the actual printing line will 1 register with a line previously made, or to position the article upon which the writing is to be done so that the printing line will appear in exactly the'place desired. It is also diflicult to hold some material against the platen at the printing point so that the letters will appear evenly struck. This may occur, for example, when writing on a rather stlfi' card or the like, or 1n wr ting near the bottom of the sheet, or in holding a card or small piece of sheet material which "would not be engaged by the ordinary paper fingers of the typewritenas for example when the piece uponwhich the writing is done is very narrow.

In the present invention the numeral 7 designates generally a revoluble platen of a front strike typewriter with-a type bar segment 8 at the front thereof in which a plurality of type bars 9 are pivoted. Secured to the segment 8 is a type bar guide 10 having an adjustable type bar 'guide. pro-per 11 at the upper end adjacent the printing point for accurately guiding the type bars 9 atthe printing point. Below the guide proper is a peep-sight 12 having pointers 13' at the top and bottom vforindi- 'cating the printing point on a scale 14: at

. along the. platen.

just above theprinting line,

. rammed Aug. 21, an.

sides thereof are resilient line finders 15 the upper ends of which are free and straight,

as shown in Fig. 2, to allow the shifting of the platen, which they lightly engage, and each formed with lateral extremities 16 bent the engagement of the edge of a sheet car- .riedby the platen as. it is moved trans versely of the machine. Each of the laterally extending portions is formed with an outwardly away from the platen to prevent l upper horizontal edge which substantially conforms with and accurately defines the prlnting line along the platen. The upper edges of these horizontal portions arepreferably graduated so that in adjusting a A printed line with respectthereto the letter spaces may be accurately adjusted laterally of the platen and with respect tothe printlng point. Between these lateral graduated portions of each of the line finders proper is an eye 17 extending above and below the printing line with pointers 18 therein at both sides of the eye which are substantially in line with the upper edges of the said herizontal portions and therefore in accurate allnement with the base of the printing .hne

1 The eyes may have different shapes and still accomplish substantially the same results; for example, in Fig. 3 the upper portion of eye 19is angular in form, thepor tion 20 which extends below the printing line being in the form of an arc of a circle so that the alining portions 21 of the eye extend outwardly rather than inwardly; in,

Fig. l-the eye 22 is formed-without any lateral pointers; in Fig. 5 the eye 23 is curved above and below the prmtmg line,

the indicating pointers 24 thereof extending outwardly and being more sharply defined than in Fig. 3; and inFig. 6 the eye25 is. formed of two concentric circles, the one below the printing line of larger diameter than the one above so that a graduated jprojection 26 is formed at each side With all'of these constructionsjit is obvious that the printing line is accurately defined by the line finders, the graduations of the line findersbeingso close to the letters of the printed'line that the article to' be 10 be printed is very close to the bottom of the,

article. V

This type of line finder .is especially adaated ffo'r ,u'seon a shifting platen, and the ,plfinciyaalhbject of the ,loops which .ex- 'ltenc'l oyer the printing line is that when n, iting near thebotto n of a sheet with the di ati n i t up a d, a n w n QaPi' italdithebottom of the sheet is liable to catch ,qngtop' of the line findersin lowering the 2 platen. QBy use of the loop, extending a considerable distance above the base of'the ating line, the sheet is prevented from "catching because 'tl1e loops extend higher than ,the upward shift ofthe platen carries "theflower edge of the sheet wl'len the platen i shit I claim is; "1 a front strike typewriter,coinprising a revoluble platen, a type bar guide at the ffrontefthe platenfand type'bfl lfS Which define a printing line on the platen, a line finder havingmeans designating the actual printing line and with a perforatedportion forming an eye extending above and below t1 printing line with] pointers at the inside le ses I 2 VA line finder for a front strike typewi leer haying a revolu ble platen and a type baiflguide andlsegment atfthe front of the 40 platen, consisting'of apair .of fixed members extending upwardly at the sides of the'guide ea haying a r nti d s nat ng h a t a ranting l n o t e pla h an i r .iiie tiqi out-a m n an y xt n ing" bove o below saidflportionandaboveandbelow printing'line with pointers at the inside vii dee' A line finde r for frontstrike typewriter which has a revoluble platen and a type bar guide and Segment at the front of jthe platen, I

consistinglof'a pair of members one end .of

eaeh fixedto theseginent-and extending in)- va fdl o ea sid f th yp b gu d 'fio i o ro in h nta p r ion oo jtheisideswhich define "the actual printing 'line on theplaten with eye between ,said ,r t bli ext n in l e and b w th v,P'r 'il e; line, th -e e ha i g a c f at w c l a ly lfin t o-p n g a both inside edges ,of the eye.

. 4. ,A-line finder for front strikeitypewr iter mprifsii a pa fm m e h fixed at ,thejfront of the machine at 0p, oosite sides of the printingpoint and; each having horizonttals de portionsin alinen ent with the print By having in'gline and each-having an eye intermediate the said horizontal portions with mwardly extending pointers whlch are in line with athe horizontal portionsand also accurately define the println g ,hne.

5. A line finder for a front strike typewriter comprising in combination a type bar guide and a segment in which the type bars are pivoted, a pair of members secured to the segment andextending upwardly therefrom, at both sides of the guide and of resilient material so that they press lightly against the platen, each of said members being formed with horizontal graduated portions which define the actual printing line along the platen and each forn' ed with ,an eye in- ,termediate the' horizontal portions which has indicating means ,also defining the printing line inside of the eye comprising similar pointers which are in line with the said horizontal portions.

6. A typewriter-line findereonsisting of a resilient member-rigidly secured at one end with {a free extremity formed with horizontal edges which accurately define the printng l ne and wlth an ntermed ate eye extend ng above and below the print ng line having similar indicating pointers on oppos te sldes thereof in l ne with the horizontal edges.

'7. A line finder and card ,holder for front strike typewriters comprising in combina tion a platen and a type bar guide at the front of the platen, a pair of'resilient n1embers rigidly attached at their lower ends to the guide with their upper extremities free and straight not conforming to the eu-ryature of the platen, each formed with ,upper horizontal edges defining the pniuting line along the platen and having an eye extending above'and below the printing line with inwardly extending pointers on opposite sides of the eye inline with the said edges, the said members by hfl r n y h l ng a member ,to be printed yieldingly against the platen and in conformity with its -SL1,1'-

' face close to theprintingpoint between the two said members.

8 In a front strike typewriter, the combination with a reYoluble platen and a type bar guide at the front thereof, type bars guided to the printing point by the said .gnide, line finders substantially tangent to theplaten along the printing line thereof at each side ofthe guide, each linefindcr being 9. A line finder for a front strike type- In testimony whereof I have signed my it writer having lateral horizontal portions to name tothis specification, in the presence of 10 define the printing line and an intermediate two subscribing witnesses, on this 15th day eye portion which extends above and below of January A. D. 1916.

5 the horizontal portions with pointers at the ALVAH G. ROEBUCK.

opposite edges in line with the said horizon- Witnesses: tal portions to also define the printing line L. E. HOUsHOLDER, within the eye at both inside edges thereof. M. P. NOBLE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, ashington, D. O. 

